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Akademický článek

Superconducting gap and critical behavior in the Iron-Pnictides

Autor: M.M.E. Barakat, T.A. Abdel-Baset, M. Belhaj, D. El-Said Bakeer, A.N. Vasiliev, M. Abdel-Hafiez

Publikováno v: Results in Physics, Vol 52, Iss , Pp 106832- (2023)

In the phase diagram of iron pnictides, superconductivity arises at the border of antiferromagnetism, which raises the question of the role of symmetry of the gap and quantum criticality. Although more than 15-years of extensive research, the microsc

Externí odkaz: https://doaj.org/article/00581a28379d4fc9975137ab5c2069a6

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Akademický článek

A numerical and theoretical study of the multipactor appearance in the presence of a DC parallel electric field

Autor: A. Plaçais, J. Hillairet, M. Belhaj, J. Puech

Publikováno v: AIP Advances, Vol 12, Iss 2, Pp 025022-025022-13 (2022)

In this paper, we study the appearance of the multipactor in a simple system with a bottom plate holding a static potential Vd. We developed a numerical model to compute the evolution of the multipactor threshold as a function of the potential. We id

Externí odkaz: https://doaj.org/article/dc12ff31836847acbc18fed72ae56ea1

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Akademický článek

Impact of deconditioning on the secondary electron yield of Cu surfaces in particle accelerators

Autor: V. Petit, M. Taborelli, D. A. Zanin, H. Neupert, P. Chiggiato, M. Belhaj

Publikováno v: Physical Review Accelerators and Beams, Vol 23, Iss 9, p 093101 (2020)

Electron cloud is a critical phenomenon in particle accelerators operating with high intensity and positively charged beams, as it is responsible for beam instabilities, vacuum degradation, and heat load on cryogenic sections. Electron clouds provoke

Externí odkaz: https://doaj.org/article/cff7ece74b174175adb7210c1acb6385

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Akademický článek

Role of the different chemical components in the conditioning process of air exposed copper surfaces

Autor: V. Petit, M. Taborelli, H. Neupert, P. Chiggiato, M. Belhaj

Publikováno v: Physical Review Accelerators and Beams, Vol 22, Iss 8, p 083101 (2019)

As a source of heat load on cryogenic sections, the electron cloud is currently a major limitation to the intensity of some modern particle accelerators such as the LHC and its high luminosity upgrade at CERN. During LHC operation, conditioning of th

Externí odkaz: https://doaj.org/article/20d70c90993a43e8a477c071fc1579f7

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Étude expérimentale et Monte-Carlo des courbes de rendement d'émission d'électrons à double bosse des films minces de SiO2

Autor: Q. Gibaru, C. Inguimbert, M. Belhaj, S. Dadouch, M. Raine, D. Lambert, D. Payan

Publikováno v: Journal of Applied Physics
Journal of Applied Physics, 2023, 133 (13), pp.135102. ⟨10.1063/5.0136229⟩

International audience; In this work, we have made experimental measurements of multiple-hump total electron emission yield (TEEY) curves on SiO 2 thin films. A Monte-Carlo electron transport model, published in Gibaru et al., J. Electron Spectrosc.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ee779fc072bd7c60df1ee03e7f855b2
https://hal.science/hal-04082823

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Akademický článek

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Superconducting Gap and Critical Behavior in the Iron-Pnictides: The Case of Bafe2− X Ni X As2

Autor: T.A. Abdel‒Baset, M. Belhaj, M.ME. Barakat, D. El-Said Bakeer, Alexandre Vasiliev, Mahmoud Abdel-Hafiez

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9ae57761237e6c252f972215c405c77e
https://doi.org/10.2139/ssrn.4427342

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Monte-Carlo simulation and experimental study of the effect of internal charging on the electron emission yield of amorphous SiO$_2$ thin films

Autor: Q. Gibaru, C. Inguimbert, M. Belhaj, M. Raine, D. Lambert

Publikováno v: Journal of Electron Spectroscopy and Related Phenomena
Journal of Electron Spectroscopy and Related Phenomena, 2022, 261, pp.147265. ⟨10.1016/j.elspec.2022.147265⟩

International audience; A Monte-Carlo code has been developed for the transport of low energy electrons and the simulation of the internal charge buildup induced by the electron irradiation in thin films of amorphous SiO$_2$. The code is validated wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c29671a02fceff868454ef77b50dfd44
https://hal.science/hal-04061967/document

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Comparison and statistical evaluation of Marshall stability and stiffness modulus for asphalt mixtures

Autor: J. Valentin, P. Vacková, M. Belhaj

Publikováno v: Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems ISBN: 9781003348450
Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems ISBN: 9781003348443

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::265f5a42904f499dc93ed84d9242cd5a
https://doi.org/10.1201/9781003348450-261

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Akademický článek

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